Alright, let's work through 7788 times 9786 step by step
7788 × 9786 = 9786 × (7788)
+ 9786 × 8 that is equal 78288
+ 9786 × 80 yielding 782880
+ 9786 × 700 what gives us 6850200
+ 9786 × 7000 what gives us 68502000

= 76213368
